Jam-freeing slider for separable fasteners



L. H; MORIN 8 2,867,881

INVENTOR. LOU)5 H. MORlN ATTORNEY.

Jan. .13, 1959 JAMFREEING SLIDER FOR SEPARABLE FASTENERS Filed March 16,1955 32 7,5 54 IO I3 a V 2 2 H 4/ 4W: ml .J w W Tl \w 88 v 2 5 M 7 w a w8. u m m m 2,

United States Patent Ofilice 2,867,881 Patented Jan. 13, 1959JAM-FREEING SLIDER FOR SEPARABLE FASTENERS Louis H. Morin, Bronx, N. Y.

Application March 16, 1955, Serial No. 494,781

13 Claims. (Cl. 24205.15)

This invention relates to what are termed jam-freeing sliders for use onseparable fastener stringers in coupling and uncoupling the same. Moreparticularly, the invention deals with a slider of the characterdescribed, which is so constructed as to provide greater stability inmovement of the wall parts of the slider one with respect to the otherin the use of the slider.

Still more particularly, the invention deals with a slider structure,wherein means is provided on one of the wall parts to eliminate thenecessity of performing an operation upon the associated wall part,thereby economizing on the production cost of the resulting slider.

The novel features of the invention will be best understood from thefollowing description, when taken together with the accompanyingdrawing, in which certain embodiments of the invention are disclosedand, in which, the separate parts are designated by suitable referenccharacters in each of the views and, in which:

Fig. 1 is a longitudinal sectional view through a slider made accordingto my invention, with parts of the construction shown in elevation.

Fig. 2 is a section on the broken line 2-2 of Fig. 1.

Fig. 3 is a perspective view of one wall part of the slider detached;and

Fig. 4 is a perspective view of the other wall part, detached.

This application constitutes a continuation-in-part of my priorapplication, Serial Number 403,199; filed January 11, 1954, now PatentNumber 2,811,764, issued November 5, 1957.

My improved slider comprises two primary flanged wall parts, namely atop wall part and a back plate or bottom wall part 11. The top wall part10 has flanged sides at the contracted end thereof, the flanges beingdesignated by the reference character 12. The wide end portion of thetop part includes an integral web 13, from which extends an elongatedbar member 14. The web 13, beyond the limits of the bar 14, hasroughened side edges, as noted at 15.

The roughened side edges constitute flash in the die casting of theplate wall 10 and normally require the operation of filing for removalof the same. As later pointed out, it will appear that these edges canbe retained, thus eliminating the necessity of the filing opera-.

tion. The bar member 14 has downwardly projecting spaced rivet members16. The bar member 14, at the narrow end of the slider wall, includes areduced T- shaped extension 17 forming what may be termed a stabilizingmember.

The top Wall part 10 has, at the narrow flanged end thereof, an aperture18, which opens outwardly through said end of the slider and bridgingthe outer end of the aperture 18 is an upwardly offset stop stirrup oryoke 19. The bottom wall part 11 has, at its narrow end, side flanges 20which are in alinement with the flanges 12, when the parts areassembled. The wall part 11 has an elongated aperture 21 for receptionof the elongated bar 14 to key or aline the wall parts one upon theother. The inner surface of the wall part 11, at the wide end portionthereof, has a pair of recesses 22, in which the roughened side edges 15of the web 13 are freely disposed, thus providing free mounting of thewall part 11 on the part 10, as well as movement of the wall part 11with respect to the part 10. The narrow end portion of the wall part 11has, on its inner surface between the flanges 20, a recess 23 forreception of the crosshead 17 of the stabilizing member 17.

Considering Fig. 1 of the drawing, it will appear that the top wall part10 has an upstanding pivot post-24, on the pivot 25 of which is mounteda lock element 26, the forward tooth end portion 27 of which extendsinto and operates in the aperture 18.

The lock element 26 also includes a forwardly projecting lug 28, whichcooperates with the stirrup or yoke 19 in checking outward movement ofthe lock element through the medium of a pull shown, in part, at 29 inFig. 1 of the drawing. The pull 29 has a pivot end 30, which operates ina recessed portion 31 on the lower surface of the element 26. Theelement 26 has, above the web 13 of the slider wall 10, a recess 32,forming a seat for one end of a spring 33, the other end portion of thespring seating and operating in a socket 34 in the Web 13. The spring 33normally supports the lock element 26 in operative position, in otherwords, extending the teeth 35 of said element into the channel 36 of theslider body.

Considering Fig. 2 of the drawing, it will be apparent that the bottomwall part 11 has, on its lower surface extending along the aperture 21,a recess 37, whichrnay be said to form a pocket opening into the recess23. Arranged in the recess or pocket 37 is a plate 38. The plate 38 isfixed to the outer surface of the bar member 14 by heading overtherivets 16. Arranged in the recess 37 is a U-shaped spring 39,tensioned to normally support the bottom wall part 11in operativeposition with respect to the wall part 10. At the same time, the spring39 will facilitate movement of the wall part 11 with respect to the part10 when the slider has a tendency to jam on a separable fastener, thusproviding assured operation of the fastener, as with other sliders ofthis'type and kind.

The stabilizing member 17 fits snugly, but freely, in the recess 23within the walls 20, thus maintaining or stabilizing the wall ,part 11in its movement relatively to the wall part 10, as well as in the normaloperation of the slider, when the wall parts are maintained in theirnormal spaced relationship to each other by the spring 39.

Having fully described my invention, what I claim as new and desire tosecure by Letters Patent is:

l. A jam-freeing slider for separable fastener stringers, said slidercomprising a top wall part having an integral web at one end, anelongated bar member protruding from said web and arranged in spacedrelation to said top wall part, a bottom wall part apertured to receivesaid bar member, means for yieldably coupling said bottom wall part withthe top wall part, said means including a plate fixed to said barmember, said bar member having .a T-shaped projecting stabilizingmember, and said bottom wall part having a recess, snugly, but freely,re-

ceiving said stabilizing member in maintaining alinement of the wallparts one with respect to the other in the use of said slider.

2. A jam-freeing slider for separable fastener stringers, said slidercomprising a top wall part having an integral web at one end, anelongated bar member protruding from said web and arranged in spacedrelation to said top wall part, a bottom wall part 'apertured to receivesaid bar member, means for yieldably coupling said bottom wall part withthe top wall part, said means including a plate fixed to said barmember, said bar member having a T-shaped projecting stabilizing member,said bottom wall part having a recess, snugly, but freely, receivingsaid stabilizing member in maintaining alinement of the wall parts onewith respect to the other in the use of said slider, and said bottomwall part having, on its. inner surface,

jrecesses arranged in alinement with side edge portions of said web.

3. A jam-freeing slider for separable fastener stringers,

;said slider comprising a top wall part having an integral web atoneend, an elongated bar member protruding from said web and arranged inspaced relation to said top wall part, a bottom wall part apertured toreceive said bar member, means for yieldably coupling said bottom wallpart with the top wall part, said means including a plate fixed to saidbar member, said bar member having a T-shaped projecting stabilizingmember, said bottom wall part having a recess, snugly, but freely,receiving said stabilizing member in maintaining alinement of the wallparts one with respect to the other in the use of said slider, a lockelement pivotally mounted in connection with the top wall part, meansyieldably supporting the lock element in operative position, and saidtop wall part and element having cooperating means, checking movement ofsaid element into inoperative position. 4. A slider of the characterdescribed, comprising top and bottom wall parts, having flanged ends,means yieldably supporting the wall parts in predetermined spacedrelationship to each other, while permitting relative movement of thewall parts one with respect to the other in jam-freeing operation of theslider, and the top wall part including a T-shaped stabilizing memberarranged and operating in a recess in the flanged end portion of thebottom wall part in maintaining alinement of the wall parts one withrespect to the other in operation of said slider.

5. A slider of the character described, comprising top and bottom wallparts, having flanged ends, means yieldably supporting the wall parts inpredetermined spaced relationship to each other, while permittingrelative movement of the wall parts one with respect to the other injam-freeing operation of the slider, the top wall part including aT-shaped stabilizing member arranged and operating in a recess in theflanged end portion of the bottom wall part in maintaining alinement ofthe wall parts one with respect to the other in operation of saidslider, and said bottom wall part being recessed to clear predeterminedportions on the top wall part in providing free mounting and movement ofthe bottom wall part of the top Wall part.

6. A slider of the character described, comprising top and bottom wallparts, having flanged ends, means yieldably supporting the wall parts inpredetermined spaced relationship to each other, while permittingrelative movement of the wall parts one with respect to the other injam-freeing operation of the slider, the top wall part including aT-shaped stabilizing member arranged and operating in a recess in theflanged end portion of the bottom wall part in maintaining alinement ofthe wall parts one with respect to the other in operation of saidslider, a lock element pivotally mounted in connection with the top.wall part, tensional means normally supporting said element in operativeposition, and interengaging means on said element and top wall part,checking movement of said element into inoperative position.

7. A slider of the character described, comprising top and bottom wallparts, having flanged ends, means yieldably supporting the wall parts inpredetermined spaced relationship to each other, while permittingrelative movement of the wall parts one with respect to the other injam-freeing operation of the slider, the top wall part including aT-shaped stabilizing member arranged and operating in a recess in theflanged end portion of the bottom wall part in maintaining alinement ofthe wall parts one with respect to the other in operation of saidslider, and said first named 'means including means for alining. thewall parts one with respect to the other.

8. A slider of the character described comprising a top wall part havinga flanged narrow end and a wide end; an integral web at said wide end,means integral with the web for movably supporting a bottom Wall part,said integral means being spaced from and substantially parallel to thetop wall part and extending toawrd the said narrow end thereof, a bottomwall part on said means, said means including a stabilizing memberoperatively engaging the bottom wall part opposite said narrow end ofthe top wall part to maintain alinement of said wall parts one withrespect to the other in the use of the slider, a plate attached to saidmeans and serving to hold the bottom wall part thereon, and yieldablemeans disposed between the plate and the bottom wall part to normallysupport the bottom wall part in operative position.

9. A slider for separable fastener stringers comprising a top member, abottom member and a web joining said members, a movable wall partassociated with the bottom member, said wall part having a. longitudinalrecess for receiving the bottom member and. also having a pair ofgrooves disposed opposite side edges of the web, a transverse extensionon the bottom member on the end opposite said web and a transverserecess in the wall part for receiving said extension, a retaining memberfor said wall part secured to the outer side of the bottom member anddisposed in said longitudinal recess, yieldable means engaging the wallpart and retaining member at a plurality of spaced points and acting tobias the wall part towards said top member, said wall part beingrockable about the central longitudinal axis thereof and being furthercharacterized by the fact that a force exerted on a peripheral portionthereof in a direction away from the top member will move said wallpart.

10. A slider according to claim 9 in which said yieldable meanscomprises a pair of bowed spring members.

11. A slider according to claim 10 in which said spring members extendlongitudinally of the slider.

12. A slider according to claim 11 in which said Wall part has a pair ofopposed shoulders extending partially across said longitudinal recessand in which said spring members are disposed on said shoulders.

13. A slider for slide fastener stringers comprising a pair of spacedmembers connected by a web at one end thereof, a flanged part disposedon one of said members and spaced from the other member, said othermember being flanged, the space between said flanged part and said othermember providing a guiding slot for a stringer, said one member having atransverse extension at the end of the slider opposite the web end, saidflanged part having a transverse recess for receiving said extension,thereby providing a more stable disposition of the flanged part on saidone member, said flanged part having at the web end thereof a pair ofgrooves each alined with a side edge of the web, means for movablymounting and resiliently maintaining said flanged part with respect tosaid one member such that the part is movable in a direction toincreasethe width of said slot and is normally maintained in a position inwhich. the slot. Width is less than the maximum possible Width, saidflanged part being automatically movable to increase the width of saidslotupon contact with .an obstruction coming between the slider and astringer, and said flanged part and flanged other member helping toprevent the slider from being laterally removed from the stringers.

References Cited in the file of this patent UNITED STATES PATENTS2,018,948 Corner Oct. 29, 1935 2,090,124 Hossmann Aug. 17, 19372,448,192 Poux Aug. 31, 1948 2,681,490 Okolowicz June 22, 1954 2,764,794Meech Oct. 22, 1956 FOREIGN PATENTS 437 ,60 6 Great Britain Oct; 28,1935 828314 France ..n May 16', 1938

